Coupled macrospins: Mode dynamics in symmetric and asymmetric vertices

We report the microwave response of symmetric and asymmetric threefold clusters with nearly contacting segments that can serve as the node in a Kagome artificial spin ice lattice. The structures are patterned on a coplanar waveguide and consist of elongated and nearly-contacting ellipses with unifor...

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Bibliographic Details
Published in:AIP advances 2017-12, Vol.8 (5)
Main Authors: Bang, Wonbae, Jungfleisch, Matthias B., Montoncello, Federico, Farmer, Barry W., Lapa, Pavel N., Hoffmann, Axel, Giovannini, Loris, De Long, Lance E., Ketterson, John B.
Format: Article
Language:English
Subjects:
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
MATERIALS SCIENCE
Online Access:Get full text
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Summary:We report the microwave response of symmetric and asymmetric threefold clusters with nearly contacting segments that can serve as the node in a Kagome artificial spin ice lattice. The structures are patterned on a coplanar waveguide and consist of elongated and nearly-contacting ellipses with uniform thickness. Branches of the ferromagnetic resonance spectra display mode softening that correlates well with the calculations, whereas agreement between the measured and simulated static magnetization is more qualitative.
ISSN:2158-3226
2158-3226